Python使用Spire.XLS for Python实现将Excel转换为PDF

pip install Spire.XLS

from spire.xls import *
from spire.xls.common import *

def ConvertExcelToPDF():
    """将 Excel 工作簿转换为 PDF"""
    inputFile = "/input/Population.xlsx"
    outputFile = "/output/ToPDF.pdf"
    
    # 创建工作簿对象
    workbook = Workbook()
    
    # 加载 Excel 文件
    workbook.LoadFromFile(inputFile)
    
    # 设置工作表适配页面（确保内容完整显示）
    workbook.ConverterSetting.SheetFitToPage = True
    
    # 保存为 PDF 格式
    workbook.SaveToFile(outputFile, FileFormat.PDF)
    workbook.Dispose()
    
if __name__ == "__main__":
    ConvertExcelToPDF()

from spire.xls import *
from spire.xls.common import *

def FitWidthWhenConvertToPDF():
    """转换时让内容宽度适配到一页"""
    inputFile = "./Demos/Data/SampleB_2.xlsx"
    outputFile = "FitWidthWhenConvertToPDF.pdf"
    
    # 加载 Excel 文件
    workbook = Workbook()
    workbook.LoadFromFile(inputFile)
    
    # 遍历所有工作表，设置页面适配
    for sheet in workbook.Worksheets:
        # 设置高度不限制（0 表示自动）
        sheet.PageSetup.FitToPagesTall = 0
        # 设置宽度适配到 1 页
        sheet.PageSetup.FitToPagesWide = 1
    
    # 保存为 PDF
    workbook.SaveToFile(outputFile, FileFormat.PDF)
    workbook.Dispose()
    
    print(f"宽度适配转换完成，PDF 文件已保存至: {outputFile}")

if __name__ == "__main__":
    FitWidthWhenConvertToPDF()

from spire.xls import *
from spire.xls.common import *

def ConvertSelectedRangeToPDF():
    inputFile = "/input/Population.xlsx"
    outputFile = "/output/SelectedRangeToPDF.pdf"
    
    # 加载原始 Excel 文件
    source_workbook = Workbook()
    source_workbook.LoadFromFile(inputFile)
    source_sheet = source_workbook.Worksheets[0] # 获取第一个工作表
    
    # 创建一个全新的、干净的临时 Workbook
    target_workbook = Workbook()
    target_workbook.CreateEmptySheets(1) # 严格控制：只创建 1 个工作表
    target_sheet = target_workbook.Worksheets[0]
    
    # 复制指定区域 (A4:E9) 到新 Workbook 的 A4:E9
    source_sheet.Range["A4:E9"].Copy(
        target_sheet.Range["A4:E9"], 
        False,  # 不复制公式
        True    # 复制格式
    )
    
    # 自动调整列宽
    target_sheet.Range["A4:E9"].AutoFitColumns()
    
    # 保存这个单独的 Workbook 为 PDF
    target_workbook.SaveToFile(outputFile, FileFormat.PDF)
    
    source_workbook.Dispose()
    target_workbook.Dispose()

if __name__ == "__main__":
    ConvertSelectedRangeToPDF()

from spire.xls import *
from spire.xls.common import *

def ConvertEachWorksheetToSeparatePDF():
    """将每个工作表转换为独立的 PDF 文件"""
    inputFile = "./Demos/Data/EachWorksheetToDifferentPDFSample.xlsx"
    
    # 加载 Excel 文件
    workbook = Workbook()
    workbook.LoadFromFile(inputFile)
    
    # 遍历所有工作表
    for sheet in workbook.Worksheets:
        # 使用工作表名称作为 PDF 文件名
        FileName = sheet.Name + ".pdf"
        
        # 将当前工作表单独保存为 PDF
        sheet.SaveToPdf(FileName)
        
        print(f"工作表 '{sheet.Name}' 已转换为 {FileName}")
    
    workbook.Dispose()
    print("所有工作表转换完成")

if __name__ == "__main__":
    ConvertEachWorksheetToSeparatePDF()

from spire.xls import *
from spire.xls.common import *

def ConvertToPDFA1B():
    """将 Excel 转换为 PDF/A-1B 标准格式"""
    inputFile = "./Demos/Data/ToPDF_A1BExample.xlsx"
    outputFile = "ToPDFA1B.pdf"
    
    # 创建工作簿并加载文件
    workbook = Workbook()
    workbook.LoadFromFile(inputFile)
    
    # 设置 PDF 一致性级别为 PDF/A-1B
    workbook.ConverterSetting.PdfConformanceLevel = PdfConformanceLevel.Pdf_A1B
    
    # 保存为 PDF
    workbook.SaveToFile(outputFile, FileFormat.PDF)
    workbook.Dispose()
    
    print(f"PDF/A-1B 文件已保存至: {outputFile}")

if __name__ == "__main__":
    ConvertToPDFA1B()

from spire.xls import *
from spire.xls.common import *

def ConvertCSVToPDF():
    """将 CSV 文件转换为 PDF"""
    inputFile = "./Demos/Data/CSVSample.csv"
    outputFile = "CSVToPDF.pdf"
    
    # 创建工作簿并加载 CSV 文件
    workbook = Workbook()
    # 加载 CSV，指定分隔符为逗号，起始行为 1，起始列为 1
    workbook.LoadFromFile(inputFile, ",", 1, 1)
    
    # 设置工作表适配页面
    workbook.ConverterSetting.SheetFitToPage = True
    
    # 获取第一个工作表
    sheet = workbook.Worksheets[0]
    
    # 自动调整所有列的宽度
    i = 1
    while i < sheet.Columns.Length:
        sheet.AutoFitColumn(i)
        i += 1
    
    # 保存为 PDF
    workbook.SaveToFile(outputFile, FileFormat.PDF)
    workbook.Dispose()
    
    print(f"CSV 转 PDF 完成，文件已保存至: {outputFile}")

if __name__ == "__main__":
    ConvertCSVToPDF()

import os
from spire.xls import *
from spire.xls.common import *

class ExcelToPdfConverter:
    """Excel 转 PDF 批量转换器"""
    
    def __init__(self, output_folder=None):
        self.output_folder = output_folder or "./PDF_Output"
        
        # 创建输出文件夹
        if not os.path.exists(self.output_folder):
            os.makedirs(self.output_folder)
    
    def convert_single_file(self, input_file, output_file=None, fit_to_page=True):
        """转换单个 Excel 文件为 PDF"""
        try:
            workbook = Workbook()
            workbook.LoadFromFile(input_file)
            
            if fit_to_page:
                workbook.ConverterSetting.SheetFitToPage = True
            
            if output_file is None:
                base_name = os.path.splitext(os.path.basename(input_file))[0]
                output_file = os.path.join(self.output_folder, f"{base_name}.pdf")
            
            workbook.SaveToFile(output_file, FileFormat.PDF)
            workbook.Dispose()
            
            print(f"✓ 转换成功: {os.path.basename(input_file)}")
            return True
            
        except Exception as e:
            print(f"✗ 转换失败 {os.path.basename(input_file)}: {str(e)}")
            return False
    
    def batch_convert(self, input_folder, file_extension=".xlsx"):
        """批量转换文件夹中的所有 Excel 文件"""
        excel_files = []
        
        # 查找所有 Excel 文件
        for filename in os.listdir(input_folder):
            if filename.lower().endswith(file_extension):
                excel_files.append(os.path.join(input_folder, filename))
        
        if not excel_files:
            print(f"在 {input_folder} 中未找到 {file_extension} 文件")
            return
        
        print(f"找到 {len(excel_files)} 个文件，开始转换...")
        
        success_count = 0
        fail_count = 0
        
        for excel_file in excel_files:
            if self.convert_single_file(excel_file):
                success_count += 1
            else:
                fail_count += 1
        
        print(f"\n转换完成!")
        print(f"成功: {success_count} 个文件")
        print(f"失败: {fail_count} 个文件")
        print(f"输出目录: {self.output_folder}")
    
    def convert_with_custom_settings(self, input_file, output_file, 
                                     fit_wide=True, fit_tall=0):
        """使用自定义页面设置进行转换"""
        workbook = Workbook()
        workbook.LoadFromFile(input_file)
        
        # 设置页面适配
        for sheet in workbook.Worksheets:
            sheet.PageSetup.FitToPagesWide = 1 if fit_wide else 0
            sheet.PageSetup.FitToPagesTall = fit_tall
        
        workbook.SaveToFile(output_file, FileFormat.PDF)
        workbook.Dispose()
        
        print(f"自定义设置转换完成: {output_file}")

def main():
    # 示例 1: 批量转换
    converter = ExcelToPdfConverter("./PDF_Output")
    converter.batch_convert("./Excel_Files", ".xlsx")
    
    # 示例 2: 单个文件转换
    # converter.convert_single_file("./Data/Report.xlsx")
    
    # 示例 3: 自定义设置转换
    # converter.convert_with_custom_settings(
    #     "./Data/WideTable.xlsx",
    #     "./Output/WideTable.pdf",
    #     fit_wide=True,
    #     fit_tall=0
    # )

if __name__ == "__main__":
    main()